Question

should there be a comma before the highlighted word?
morticia addams can do a cartwheel as long as she stretches her legs first.
add a comma
dont add a comma

Explanation:

The phrase "as long as she stretches her legs first" is a dependent clause that acts as an essential condition for the independent clause "Morticia Addams can do a cartwheel." Essential clauses (also called restrictive clauses) do not require a comma before them because they are necessary to understand the full meaning of the sentence. Removing this clause would leave the sentence incomplete in terms of context about when Morticia can perform the cartwheel.

Answer:

Don't Add a Comma